9
x represents a number so in this equation it basically means what number is added to 9 to make 18
to work it out you do 18-9=9
6a + 9; a = 36a + 9= 6(3) + 9= 18 + 9= 27
18
Yes it is 9+9=18
27
18. 9 x 0 = 0 S0, 9 + 0 + 9 = 18
Equality
12 + 16 + 18 + 20 + 9 = 75
9 + 8 + 16 + 17 + 18 = 68
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
5. Just do 9 minus 4. 5 plus 4 equals 9
y= -9
it equals 15